344
WWUS76 KLOX 200705
NPWLOX
URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
1205 AM PDT FRI MAR 20 2026
CAZ088-356>358-368>376-378>380-548-210300-
/O.CON.KLOX.XH.W.0001.000000T0000Z-260321T0300Z/
SANTA CLARITA VALLEY-LAKE CASITAS-OJAI VALLEY-CENTRAL VENTURA
COUNTY VALLEYS-LOS ANGELES COUNTY INLAND COAST INCLUDING DOWNTOWN
LOS ANGELES-WESTERN SANTA MONICA MOUNTAINS RECREATIONAL AREA-
EASTERN SANTA MONICA MOUNTAINS RECREATIONAL AREA-CALABASAS AND
AGOURA HILLS-WESTERN SAN FERNANDO VALLEY-EASTERN SAN FERNANDO
VALLEY-SOUTHEASTERN VENTURA COUNTY VALLEYS-SANTA SUSANA MOUNTAINS-
SOUTHERN VENTURA COUNTY MOUNTAINS-INTERSTATE 5 CORRIDOR-WESTERN
SAN GABRIEL MOUNTAINS AND HIGHWAY 14 CORRIDOR-EASTERN SAN GABRIEL
MOUNTAINS-LOS ANGELES COUNTY SAN GABRIEL VALLEY-
INCLUDING THE CITIES OF NEWHALL, NORTHRIDGE, BURBANK, UNIVERSAL
CITY, OAT MOUNTAIN, TEJON PASS, PASADENA, WESTLAKE VILLAGE,
NORWALK, EL MONTE, CULVER CITY, OAK VIEW, WOODLAND HILLS, MALIBU
BOWL, MEINERS OAKS, GORMAN, COMPTON, PIRU, CHATSWORTH, THE
ANGELES CREST HIGHWAY, TOPATOPA MOUNTAINS, FILLMORE, MOORPARK,
NEWBURY PARK, SIMI VALLEY, THOUSAND OAKS, PYRAMID LAKE, WARM
SPRINGS, TOPANGA, BEVERLY HILLS, MATILIJA, SUNLAND, SANTA
CLARITA, WRIGHTWOOD, SAN GABRIEL, LA CANADA FLINTRIDGE, SANTA
PAULA, ACTON, VALENCIA, MOUNT WILSON, MALIBU LAKE, HOLLYWOOD,
LAKE CASTAIC, MILL CREEK, GLENDALE, EAST LOS ANGELES, OJAI, MOUNT
BALDY, DOWNEY, VAN NUYS, ROSE VALLEY, AND POMONA
1205 AM PDT FRI MAR 20 2026
...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM PDT THIS
EVENING...
* WHAT...DANGEROUSLY HOT CONDITIONS WITH TEMPERATURES BETWEEN 96 AND
104 EXPECTED.
* WHERE...A PORTION OF SOUTHWEST CALIFORNIA.
* WHEN...UNTIL 8 PM PDT THIS EVENING.
* IMPACTS...THERE IS A HIGH RISK FOR DANGEROUS HEAT ILLNESS FOR
ANYONE, ESPECIALLY FOR THE VERY YOUNG, THE VERY OLD, THOSE WITHOUT
AIR CONDITIONING, AND THOSE ACTIVE OUTDOORS.
* ADDITIONAL DETAILS...WARM OVERNIGHT LOW TEMPERATURES WILL
CONTRIBUTE TO THE HEAT RISK, ESPECIALLY IN THE MOUNTAIN AND
FOOTHILL LOCATIONS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
DRINK PLENTY OF FLUIDS, STAY IN AN AIR-CONDITIONED ROOM, STAY OUT OF
THE SUN, AND CHECK UP ON RELATIVES AND NEIGHBORS.
TAKE EXTRA PRECAUTIONS WHEN OUTSIDE. WEAR LIGHTWEIGHT AND LOOSE
FITTING CLOTHING. TRY TO LIMIT STRENUOUS ACTIVITIES TO EARLY MORNING
OR EVENING. TAKE ACTION WHEN YOU SEE SYMPTOMS OF HEAT EXHAUSTION AND
HEAT STROKE.
CAZ342-345-351>353-210300-
/O.CON.KLOX.XH.W.0001.000000T0000Z-260321T0300Z/
SANTA LUCIA MOUNTAINS-SAN LUIS OBISPO COUNTY MOUNTAINS-SANTA YNEZ
MOUNTAINS WESTERN RANGE-SANTA YNEZ MOUNTAINS EASTERN RANGE-SANTA
BARBARA COUNTY INTERIOR MOUNTAINS-
INCLUDING THE CITIES OF HEARST CASTLE, IRISH HILLS, LA PANZA
RANGE, SAN MARCOS PASS, CALIENTE RANGE, BIG PINE MOUNTAIN, SAN
RAFAEL MOUNTAIN, SANTA MARGARITA LAKE, MONTECITO HILLS, AND
FIGUEROA MOUNTAIN
1205 AM PDT FRI MAR 20 2026
...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM PDT THIS
EVENING...
* WHAT...DANGEROUSLY HOT CONDITIONS WITH TEMPERATURES IN THE 90S TO
NEAR 100 EXPECTED.
* WHERE...SAN LUIS OBISPO COUNTY MOUNTAINS, SANTA BARBARA COUNTY
INTERIOR MOUNTAINS, SANTA LUCIA MOUNTAINS, SANTA YNEZ MOUNTAINS
EASTERN RANGE, AND SANTA YNEZ MOUNTAINS WESTERN RANGE.
* WHEN...UNTIL 8 PM PDT THIS EVENING.
* IMPACTS...THERE IS A HIGH RISK FOR DANGEROUS HEAT ILLNESS FOR
ANYONE, ESPECIALLY FOR THE VERY YOUNG, THE VERY OLD, THOSE WITHOUT
AIR CONDITIONING, AND THOSE ACTIVE OUTDOORS.
* ADDITIONAL DETAILS...WARM OVERNIGHT LOW TEMPERATURES WILL
CONTRIBUTE TO THE HEAT RISK, ESPECIALLY IN THE MOUNTAIN AND
FOOTHILL LOCATIONS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
DRINK PLENTY OF FLUIDS, STAY IN AN AIR-CONDITIONED ROOM, STAY OUT OF
THE SUN, AND CHECK UP ON RELATIVES AND NEIGHBORS.
TAKE EXTRA PRECAUTIONS WHEN OUTSIDE. WEAR LIGHTWEIGHT AND LOOSE
FITTING CLOTHING. TRY TO LIMIT STRENUOUS ACTIVITIES TO EARLY MORNING
OR EVENING. TAKE ACTION WHEN YOU SEE SYMPTOMS OF HEAT EXHAUSTION AND
HEAT STROKE.
CAZ038-343-344-210300-
/O.CON.KLOX.HT.Y.0004.000000T0000Z-260321T0300Z/
CUYAMA VALLEY-SOUTHERN SALINAS VALLEY-SAN LUIS OBISPO COUNTY
INTERIOR VALLEYS-
INCLUDING THE CITIES OF NEW CUYAMA, CRESTON, LAKE NACIMIENTO, SAN
MIGUEL, CARRIZO PLAIN, ATASCADERO, SHANDON, TEMPLETON, AND PASO
ROBLES
1205 AM PDT FRI MAR 20 2026
..HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM PDT THIS EVENING
* WHAT...HOT CONDITIONS WITH HIGH TEMPERATURES IN THE 80S AND 90S
EXPECTED.
* WHERE...CUYAMA VALLEY, SAN LUIS OBISPO COUNTY INTERIOR VALLEYS,
AND SOUTHERN SALINAS VALLEY.
* WHEN...UNTIL 8 PM PDT THIS EVENING.
* IMPACTS...THERE IS A HIGH RISK FOR HEAT ILLNESS FOR SENSITIVE
POPULATIONS INCLUDING THE VERY YOUNG, THE VERY OLD, THOSE WITHOUT
AIR CONDITIONING, AND THOSE ACTIVE OUTDOORS.
* ADDITIONAL DETAILS...WARM OVERNIGHT LOW TEMPERATURES WILL
CONTRIBUTE TO THE HEAT RISK, ESPECIALLY IN THE MOUNTAIN AND
FOOTHILL LOCATIONS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
DRINK PLENTY OF FLUIDS, STAY IN AN AIR-CONDITIONED ROOM, STAY OUT OF
THE SUN, AND CHECK UP ON RELATIVES AND NEIGHBORS.
TAKE EXTRA PRECAUTIONS WHEN OUTSIDE. WEAR LIGHTWEIGHT AND LOOSE
FITTING CLOTHING. TRY TO LIMIT STRENUOUS ACTIVITIES TO EARLY MORNING
OR EVENING. TAKE ACTION WHEN YOU SEE SYMPTOMS OF HEAT EXHAUSTION AND
HEAT STROKE.
CAZ087-210300-
/O.CON.KLOX.HT.Y.0003.000000T0000Z-260321T0300Z/
CATALINA AND SANTA BARBARA ISLANDS-
INCLUDING THE CITIES OF AVALON
1205 AM PDT FRI MAR 20 2026
..HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM PDT THIS EVENING
* WHAT...HOT CONDITIONS WITH HIGH TEMPERATURES BETWEEN 80 AND 90
EXPECTED.
* WHERE...CATALINA AND SANTA BARBARA ISLANDS.
* WHEN...UNTIL 8 PM PDT THIS EVENING.
* IMPACTS...THERE IS A HIGH RISK FOR HEAT ILLNESS FOR SENSITIVE
POPULATIONS INCLUDING THE VERY YOUNG, THE VERY OLD, THOSE WITHOUT
AIR CONDITIONING, AND THOSE ACTIVE OUTDOORS.
* ADDITIONAL DETAILS...WARM OVERNIGHT LOW TEMPERATURES WILL
CONTRIBUTE TO THE HEAT RISK, ESPECIALLY IN THE MOUNTAIN AND
FOOTHILL LOCATIONS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
DRINK PLENTY OF FLUIDS, STAY IN AN AIR-CONDITIONED ROOM, STAY OUT OF
THE SUN, AND CHECK UP ON RELATIVES AND NEIGHBORS.
TAKE EXTRA PRECAUTIONS WHEN OUTSIDE. WEAR LIGHTWEIGHT AND LOOSE
FITTING CLOTHING. TRY TO LIMIT STRENUOUS ACTIVITIES TO EARLY MORNING
OR EVENING. TAKE ACTION WHEN YOU SEE SYMPTOMS OF HEAT EXHAUSTION AND
HEAT STROKE.
CAZ340-341-346>350-210300-
/O.CON.KLOX.HT.Y.0003.000000T0000Z-260321T0300Z/
SAN LUIS OBISPO COUNTY BEACHES-SAN LUIS OBISPO COUNTY INLAND
CENTRAL COAST-SANTA BARBARA COUNTY CENTRAL COAST BEACHES-SANTA
BARBARA COUNTY INLAND CENTRAL COAST-SANTA YNEZ VALLEY-SANTA
BARBARA COUNTY SOUTHWESTERN COAST-SANTA BARBARA COUNTY
SOUTHEASTERN COAST-
INCLUDING THE CITIES OF LAKE CACHUMA, SANTA MARIA, PISMO BEACH,
SOLVANG, SANTA BARBARA, MONTECITO, MORRO BAY, LOMPOC, GOLETA,
VANDENBERG SPACE FORCE BASE, JALAMA BEACH, ARROYO GRANDE, SANTA
YNEZ, LOPEZ LAKE, REFUGIO STATE BEACH, EL CAPITAN STATE BEACH,
AVILA BEACH, CARPINTERIA, BUELLTON, GAVIOTA, NIPOMO, SAN LUIS
OBISPO, CAMBRIA, AND LOS OLIVOS
1205 AM PDT FRI MAR 20 2026
..HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM PDT THIS EVENING
* WHAT...HOT CONDITIONS WITH HIGH TEMPERATURES IN THE 80S AND 90S
EXPECTED.
* WHERE...SAN LUIS OBISPO COUNTY BEACHES, SAN LUIS OBISPO COUNTY
INLAND CENTRAL COAST, SANTA BARBARA COUNTY CENTRAL COAST BEACHES,
SANTA BARBARA COUNTY INLAND CENTRAL COAST, SANTA BARBARA COUNTY
SOUTHEASTERN COAST, SANTA BARBARA COUNTY SOUTHWESTERN COAST, AND
SANTA YNEZ VALLEY.
* WHEN...UNTIL 8 PM PDT THIS EVENING.
* IMPACTS...THERE IS A HIGH RISK FOR HEAT ILLNESS FOR SENSITIVE
POPULATIONS INCLUDING THE VERY YOUNG, THE VERY OLD, THOSE WITHOUT
AIR CONDITIONING, AND THOSE ACTIVE OUTDOORS.
* ADDITIONAL DETAILS...WARM OVERNIGHT LOW TEMPERATURES WILL
CONTRIBUTE TO THE HEAT RISK, ESPECIALLY IN THE MOUNTAIN AND
FOOTHILL LOCATIONS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
DRINK PLENTY OF FLUIDS, STAY IN AN AIR-CONDITIONED ROOM, STAY OUT OF
THE SUN, AND CHECK UP ON RELATIVES AND NEIGHBORS.
TAKE EXTRA PRECAUTIONS WHEN OUTSIDE. WEAR LIGHTWEIGHT AND LOOSE
FITTING CLOTHING. TRY TO LIMIT STRENUOUS ACTIVITIES TO EARLY MORNING
OR EVENING. TAKE ACTION WHEN YOU SEE SYMPTOMS OF HEAT EXHAUSTION AND
HEAT STROKE.
CAZ354-355-362-366-367-210300-
/O.CON.KLOX.HT.Y.0003.000000T0000Z-260321T0300Z/
VENTURA COUNTY BEACHES-VENTURA COUNTY INLAND COAST-MALIBU COAST-
LOS ANGELES COUNTY BEACHES-PALOS VERDES HILLS-
INCLUDING THE CITIES OF REDONDO BEACH, SANTA MONICA, PACIFIC
PALISADES, RANCHO PALOS VERDES, EAST VENTURA, TORRANCE, VENTURA,
LAX, CAMARILLO, LONG BEACH, POINT MUGU, OXNARD, PORT HUENEME, AND
MALIBU
1205 AM PDT FRI MAR 20 2026
..HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM PDT THIS EVENING
* WHAT...HOT CONDITIONS WITH HIGH TEMPERATURES IN THE 80S AND 90S
EXPECTED.
* WHERE...LOS ANGELES COUNTY BEACHES, MALIBU COAST, PALOS VERDES
HILLS, VENTURA COUNTY BEACHES, AND VENTURA COUNTY INLAND COAST.
* WHEN...UNTIL 8 PM PDT THIS EVENING.
* IMPACTS...THERE IS A HIGH RISK FOR HEAT ILLNESS FOR SENSITIVE
POPULATIONS INCLUDING THE VERY YOUNG, THE VERY OLD, THOSE WITHOUT
AIR CONDITIONING, AND THOSE ACTIVE OUTDOORS.
* ADDITIONAL DETAILS...WARM OVERNIGHT LOW TEMPERATURES WILL
CONTRIBUTE TO THE HEAT RISK, ESPECIALLY IN THE MOUNTAIN AND
FOOTHILL LOCATIONS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
DRINK PLENTY OF FLUIDS, STAY IN AN AIR-CONDITIONED ROOM, STAY OUT OF
THE SUN, AND CHECK UP ON RELATIVES AND NEIGHBORS.
TAKE EXTRA PRECAUTIONS WHEN OUTSIDE. WEAR LIGHTWEIGHT AND LOOSE
FITTING CLOTHING. TRY TO LIMIT STRENUOUS ACTIVITIES TO EARLY MORNING
OR EVENING. TAKE ACTION WHEN YOU SEE SYMPTOMS OF HEAT EXHAUSTION AND
HEAT STROKE.
CAZ549-550-210300-
/O.CON.KLOX.HT.Y.0004.000000T0000Z-260321T0300Z/
SAN MIGUEL AND SANTA ROSA ISLANDS-SANTA CRUZ AND ANACAPA ISLANDS-
INCLUDING THE CITIES OF SMUGGLERS COVE AND CUYLER HARBOR
1205 AM PDT FRI MAR 20 2026
..HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM PDT THIS EVENING
* WHAT...HOT CONDITIONS WITH HIGH TEMPERATURES BETWEEN 80 AND 90
EXPECTED.
* WHERE...SAN MIGUEL AND SANTA ROSA ISLANDS AND SANTA CRUZ AND
ANACAPA ISLANDS.
* WHEN...UNTIL 8 PM PDT THIS EVENING.
* IMPACTS...THERE IS A HIGH RISK FOR HEAT ILLNESS FOR SENSITIVE
POPULATIONS INCLUDING THE VERY YOUNG, THE VERY OLD, THOSE WITHOUT
AIR CONDITIONING, AND THOSE ACTIVE OUTDOORS.
* ADDITIONAL DETAILS...WARM OVERNIGHT LOW TEMPERATURES WILL
CONTRIBUTE TO THE HEAT RISK, ESPECIALLY IN THE MOUNTAIN AND
FOOTHILL LOCATIONS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
DRINK PLENTY OF FLUIDS, STAY IN AN AIR-CONDITIONED ROOM, STAY OUT OF
THE SUN, AND CHECK UP ON RELATIVES AND NEIGHBORS.
TAKE EXTRA PRECAUTIONS WHEN OUTSIDE. WEAR LIGHTWEIGHT AND LOOSE
FITTING CLOTHING. TRY TO LIMIT STRENUOUS ACTIVITIES TO EARLY MORNING
OR EVENING. TAKE ACTION WHEN YOU SEE SYMPTOMS OF HEAT EXHAUSTION AND
HEAT STROKE.
VISIT US AT HTTP://WWW.WEATHER.GOV/LOSANGELES
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